Bell, Valerie

Molecular weight e 102. Moleeular volume I I 1. 1 Utre ef Valerie aoid vapour weighe 61 erithe,. gr.(yd67. Belle at 176 . 

The good news is that such a filter exists. Recent work by Steven Kuznick and Valerie Bell at Engelhard Corporation in New Jersey and Michael Tsapatsis at the University of Massachusetts has produced a molecular sieve m which the pore (passage) sizes can be adjusted precisely enough to separate N2 molecules from CH4 molecules. The material involved is a special hydrated titanosilicate (contains H20, Ti, Si, O, and Sr) compound... 

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